Line numbers scroll independently of code

At the moment I'm finding my code and line numbers scroll independently, is this because the lines aren't included inside the virtualized grid? Or is the solution more complex?

Reproduce the independent scrolling described in the issue, then inspect the virtualized grid and how it renders the code and line numbers. Determine whether the line numbers are outside the grid or otherwise use a separate scroll position. Done means code and line numbers remain aligned during scrolling, with the behavior verified in the affected renderer.

Written by the indexing model from the issue text.